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									<td colspan="2" style="text-align: center"><span>P0119-</span>
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									<td style="width: 15%; text-align: center">试卷层级：</td>
									<td style="width: 17%; text-align: center">学院 : 大数据学院</td>
									<td style="width: 17%; text-align: center">方向 : </td>
									<td style="width: 17%; text-align: center">阶段 : </td>
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															<div id="exampaper-desc" class="exampaper-filter"><span class="exampaper-filter-item efi-qt-all efi-selected">全部[<span class="efi-tno">40</span>]<span class="efi-qcode" style="display:none;">qt-all</span></span><span class="exampaper-filter-item efi-qt-singlechoice">单选题[<span class="efi-tno">20</span>]<span class="efi-qcode" style="display:none;">qt-singlechoice</span></span><span class="exampaper-filter-item efi-qt-multiplechoice">多选题[<span class="efi-tno">10</span>]<span class="efi-qcode" style="display:none;">qt-multiplechoice</span></span><span class="exampaper-filter-item efi-qt-trueorfalse">判断题[<span class="efi-tno">10</span>]<span class="efi-qcode" style="display:none;">qt-trueorfalse</span></span></div>
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																<span>试卷总分：</span><span id="exampaper-total-point" style="margin-right: 20px;">100</span>
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													<ul id="exampaper-body" style="padding: 0px;">
														<!-- 开始加载试卷 -->
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">1.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">3a6d680ca483422887aa8b1597989815</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>已知矩阵E=[[6,6],[8,8]] F=[[2,2]],则，E/F=</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_3a6d680ca483422887aa8b1597989815" class="question-input"> -->
																						<span class="question-li-text">A: 
																								[[3,3],[4,4]]
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_3a6d680ca483422887aa8b1597989815" class="question-input"> -->
																						<span class="question-li-text">B: 
																								[[1,3],[2,4]]
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_3a6d680ca483422887aa8b1597989815" class="question-input"> -->

																						<span class="question-li-text">C: 
																								[[1,2],[2,4]]
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_3a6d680ca483422887aa8b1597989815" class="question-input"> -->

																						<span class="question-li-text">D: 
																								不能计算
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						A
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							A
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">2.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">46533dbcf7ef4de3b3db4577a422ab89</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>已知两个矩阵A=[[2,2],[3,3]] B=[[1,1]],则，A+B=</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_46533dbcf7ef4de3b3db4577a422ab89" class="question-input"> -->
																						<span class="question-li-text">A: 
																								[[3,3],[4,4]]
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_46533dbcf7ef4de3b3db4577a422ab89" class="question-input"> -->
																						<span class="question-li-text">B: 
																								[[1,3],[2,4]]
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_46533dbcf7ef4de3b3db4577a422ab89" class="question-input"> -->

																						<span class="question-li-text">C: 
																								[[1,2],[2,4]]
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_46533dbcf7ef4de3b3db4577a422ab89" class="question-input"> -->

																						<span class="question-li-text">D: 
																								不能计算
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						A
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							A
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">3.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">f21cac43502b4600968b37f3e8ceb506</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>大数据：在三层神经网络中，原始特征是指</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_f21cac43502b4600968b37f3e8ceb506" class="question-input"> -->
																						<span class="question-li-text">A: 
																								输入层
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_f21cac43502b4600968b37f3e8ceb506" class="question-input"> -->
																						<span class="question-li-text">B: 
																								输出层
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_f21cac43502b4600968b37f3e8ceb506" class="question-input"> -->

																						<span class="question-li-text">C: 
																								隐藏层
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_f21cac43502b4600968b37f3e8ceb506" class="question-input"> -->

																						<span class="question-li-text">D: 
																								输入层和隐藏层
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						A
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							A
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">4.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">8f02cc336ff548d9bfb226b2d61f37d6</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>以下关于正则化参数lamda描述正确的是（）</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_8f02cc336ff548d9bfb226b2d61f37d6" class="question-input"> -->
																						<span class="question-li-text">A: 
																								当lamda较大时，训练集误差较小（过拟合）而交叉验证集误差较大
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_8f02cc336ff548d9bfb226b2d61f37d6" class="question-input"> -->
																						<span class="question-li-text">B: 
																								当lamda较小时，训练集误差较小（过拟合）而交叉验证集误差较大
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_8f02cc336ff548d9bfb226b2d61f37d6" class="question-input"> -->

																						<span class="question-li-text">C: 
																								正则化用来解决欠拟合问题
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_8f02cc336ff548d9bfb226b2d61f37d6" class="question-input"> -->

																						<span class="question-li-text">D: 
																								正则化可以解决过拟合问题与欠拟合问题
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						B
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							B
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">5.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">9af7e94779714ab2910fcb209c64b0d4</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>假设z=3xy+4x+5y+6，求z对y的偏导</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_9af7e94779714ab2910fcb209c64b0d4" class="question-input"> -->
																						<span class="question-li-text">A: 
																								3x+5
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_9af7e94779714ab2910fcb209c64b0d4" class="question-input"> -->
																						<span class="question-li-text">B: 
																								3x+5+4x
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_9af7e94779714ab2910fcb209c64b0d4" class="question-input"> -->

																						<span class="question-li-text">C: 
																								3x+5+4x+6
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_9af7e94779714ab2910fcb209c64b0d4" class="question-input"> -->

																						<span class="question-li-text">D: 
																								3x
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						A
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							A
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">6.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">f5282db1f2ca4eaa8832ff3fe89ed2b4</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>在机器学习中，假设用高斯核训练一个SVM分类器，发现SVM欠拟合数据集。那么，应该增加或减少C?或者增加或减少σ?</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_f5282db1f2ca4eaa8832ff3fe89ed2b4" class="question-input"> -->
																						<span class="question-li-text">A: 
																								应该增加C,或者增加σ.
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_f5282db1f2ca4eaa8832ff3fe89ed2b4" class="question-input"> -->
																						<span class="question-li-text">B: 
																								应该减少C,或者减少σ.
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_f5282db1f2ca4eaa8832ff3fe89ed2b4" class="question-input"> -->

																						<span class="question-li-text">C: 
																								应该增加C,减少σ.
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_f5282db1f2ca4eaa8832ff3fe89ed2b4" class="question-input"> -->

																						<span class="question-li-text">D: 
																								应该减少C,增加σ.
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						C
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							C
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">7.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">4b308a1ee58d42b3bd8fb96ce15e0a90</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>SVM又被称为</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_4b308a1ee58d42b3bd8fb96ce15e0a90" class="question-input"> -->
																						<span class="question-li-text">A: 
																								最大间距分类器
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_4b308a1ee58d42b3bd8fb96ce15e0a90" class="question-input"> -->
																						<span class="question-li-text">B: 
																								最小间距分类器
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_4b308a1ee58d42b3bd8fb96ce15e0a90" class="question-input"> -->

																						<span class="question-li-text">C: 
																								回归分类器
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_4b308a1ee58d42b3bd8fb96ce15e0a90" class="question-input"> -->

																						<span class="question-li-text">D: 
																								平衡分类器
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						A
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							A
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">8.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">d7e0d83edeef4cbbb8e56b7e2facc422</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>支持向量机具有较好的鲁棒性的原因是</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_d7e0d83edeef4cbbb8e56b7e2facc422" class="question-input"> -->
																						<span class="question-li-text">A: 
																								分类间隔的最大化
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_d7e0d83edeef4cbbb8e56b7e2facc422" class="question-input"> -->
																						<span class="question-li-text">B: 
																								分类间隔的最小化
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_d7e0d83edeef4cbbb8e56b7e2facc422" class="question-input"> -->

																						<span class="question-li-text">C: 
																								分类归一化
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_d7e0d83edeef4cbbb8e56b7e2facc422" class="question-input"> -->

																						<span class="question-li-text">D: 
																								分类目标最小化
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						A
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							A
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">9.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">fefcaba67d3c40259d9621dd06d5f4c3</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>已知一个数据集，n为特征数，m为训练样本数，如果n较小，而m较大（例如n在1-1000之间，而m大于5000）则使用支持向量机会非常慢。以下解决方案中，正确的个数为
1.创造或增加更多的特征
2.创造或增加更多的特征后，使用逻辑回归模型
3.创造或增加更多的特征后，使用不带核函数的支持向量机
4.使用高斯核函数支持向量机</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_fefcaba67d3c40259d9621dd06d5f4c3" class="question-input"> -->
																						<span class="question-li-text">A: 
																								1
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_fefcaba67d3c40259d9621dd06d5f4c3" class="question-input"> -->
																						<span class="question-li-text">B: 
																								2
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_fefcaba67d3c40259d9621dd06d5f4c3" class="question-input"> -->

																						<span class="question-li-text">C: 
																								3
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_fefcaba67d3c40259d9621dd06d5f4c3" class="question-input"> -->

																						<span class="question-li-text">D: 
																								4
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						C
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							C
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">10.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">c48d86333d21409ebb93da80a35da387</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>有一数据集（n是特征数，m为样本数），如果n较小，而m较大（如n在1-1000之间，而m大于5000），此时使用支持向量机会非常慢。以下方案中，正确的解决方案的个数是
1.创造或新增更多的特征
2.创造或新增更多的特征后，使用逻辑回归模型
3.创造或新增更多的特征后，使用不带核函数的支持向量机
4.使用高斯核函数支持向量机</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_c48d86333d21409ebb93da80a35da387" class="question-input"> -->
																						<span class="question-li-text">A: 
																								1
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_c48d86333d21409ebb93da80a35da387" class="question-input"> -->
																						<span class="question-li-text">B: 
																								2
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_c48d86333d21409ebb93da80a35da387" class="question-input"> -->

																						<span class="question-li-text">C: 
																								3
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_c48d86333d21409ebb93da80a35da387" class="question-input"> -->

																						<span class="question-li-text">D: 
																								4
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						C
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							C
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">11.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">0da154999d184961b5fe636cc221cb1a</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>若数据集，特征数较小（在1-1000之间），训练样本数大小中等（在10-10000之间），一般选择什么核函数的svm</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_0da154999d184961b5fe636cc221cb1a" class="question-input"> -->
																						<span class="question-li-text">A: 
																								逻辑回归模型
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_0da154999d184961b5fe636cc221cb1a" class="question-input"> -->
																						<span class="question-li-text">B: 
																								不带核的支持向量机
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_0da154999d184961b5fe636cc221cb1a" class="question-input"> -->

																						<span class="question-li-text">C: 
																								高斯核的支持向量机
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_0da154999d184961b5fe636cc221cb1a" class="question-input"> -->

																						<span class="question-li-text">D: 
																								多项式核的支持向量机
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						C
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							C
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">12.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">907428c753fa4cf286f3f02301a95e8c</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>问题1：数据库中储存了许多客户信息，把他们分成不同的客户群，这样可以根据不同的客户群提供更合适的服务。
问题2：希望软件检查客户的个人账户，并确定该账户是否被黑客袭击或者是缺乏保护的账户。
请问这两个问题是分类问题还是聚类问题？</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_907428c753fa4cf286f3f02301a95e8c" class="question-input"> -->
																						<span class="question-li-text">A: 
																								都是聚类问题
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_907428c753fa4cf286f3f02301a95e8c" class="question-input"> -->
																						<span class="question-li-text">B: 
																								问题1是聚类问题，问题2是分类问题
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_907428c753fa4cf286f3f02301a95e8c" class="question-input"> -->

																						<span class="question-li-text">C: 
																								问题1是分类问题，问题2是聚类问题
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_907428c753fa4cf286f3f02301a95e8c" class="question-input"> -->

																						<span class="question-li-text">D: 
																								都是分类问题
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						B
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							B
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">13.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">82c80244c698460fb87afe0ae0949f4c</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>设x1,x2∈{0,1}和 hΘ(x)代表输出，神经网络中，赋予不同权重，可以表示不同的逻辑运算，则可以表达逻辑或的表达式是</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_82c80244c698460fb87afe0ae0949f4c" class="question-input"> -->
																						<span class="question-li-text">A: 
																								h(x)=g(-25+15x1+15x2)
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_82c80244c698460fb87afe0ae0949f4c" class="question-input"> -->
																						<span class="question-li-text">B: 
																								h(x)=g(-10+15x1+15x2)
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_82c80244c698460fb87afe0ae0949f4c" class="question-input"> -->

																						<span class="question-li-text">C: 
																								h(x)=g(-30+20x1)
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_82c80244c698460fb87afe0ae0949f4c" class="question-input"> -->

																						<span class="question-li-text">D: 
																								h(x)=g(-20+10x1+15x2)
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						B
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							B
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">14.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">c4509bb63ebf49e182ca97748b204efa</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>在机器学习中，已知一个数据集，n为特征数，m为训练样本数，如果n较小，而m较大（例如n在1-1000之间，而m大于5000）则使用支持向量机会非常慢。以下解决方案中，正确的个数为
1.创造或增加更多的特征
2.创造或增加更多的特征后，使用逻辑回归模型
3.创造或增加更多的特征后，使用不带核函数的支持向量机
4.使用高斯核函数支持向量机</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_c4509bb63ebf49e182ca97748b204efa" class="question-input"> -->
																						<span class="question-li-text">A: 
																								1
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_c4509bb63ebf49e182ca97748b204efa" class="question-input"> -->
																						<span class="question-li-text">B: 
																								2
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_c4509bb63ebf49e182ca97748b204efa" class="question-input"> -->

																						<span class="question-li-text">C: 
																								3
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_c4509bb63ebf49e182ca97748b204efa" class="question-input"> -->

																						<span class="question-li-text">D: 
																								4
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						C
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							C
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">15.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">e737eee0560444468509337a2c9541f7</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>例如神经网络，有两个输入x1,x2∈{0,1} 和输出hΘ(x)=g(-10+20x1+20x2).下面选项中哪一个是它表达的逻辑关系？</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_e737eee0560444468509337a2c9541f7" class="question-input"> -->
																						<span class="question-li-text">A: 
																								NOT(逻辑非)
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_e737eee0560444468509337a2c9541f7" class="question-input"> -->
																						<span class="question-li-text">B: 
																								AND (逻辑与)
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_e737eee0560444468509337a2c9541f7" class="question-input"> -->

																						<span class="question-li-text">C: 
																								OR (逻辑或)
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_e737eee0560444468509337a2c9541f7" class="question-input"> -->

																						<span class="question-li-text">D: 
																								XOR (逻辑异或)
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						C
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							C
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">16.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">d496207a9b31437d9b6ccf12b6691cf9</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>在机器学习中，已知一个数据集，n为特征数，m为训练样本数，如果n较小，而且m大小中等（例如n在1-1000之间，而m在10-10000之间），则一般选择什么核函数的支持向量机</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_d496207a9b31437d9b6ccf12b6691cf9" class="question-input"> -->
																						<span class="question-li-text">A: 
																								逻辑回归模型
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_d496207a9b31437d9b6ccf12b6691cf9" class="question-input"> -->
																						<span class="question-li-text">B: 
																								不带核的支持向量机
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_d496207a9b31437d9b6ccf12b6691cf9" class="question-input"> -->

																						<span class="question-li-text">C: 
																								高斯核的支持向量机
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_d496207a9b31437d9b6ccf12b6691cf9" class="question-input"> -->

																						<span class="question-li-text">D: 
																								多项式核的支持向量机
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						C
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							C
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">17.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">5c7db3dac3ad4942824f9add824fc1a5</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>kMeans算法中，第一个循环是如何操作的</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_5c7db3dac3ad4942824f9add824fc1a5" class="question-input"> -->
																						<span class="question-li-text">A: 
																								计算聚类中心和聚类中心间的距离
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_5c7db3dac3ad4942824f9add824fc1a5" class="question-input"> -->
																						<span class="question-li-text">B: 
																								计算样本与样本间的距离
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_5c7db3dac3ad4942824f9add824fc1a5" class="question-input"> -->

																						<span class="question-li-text">C: 
																								计算所有样本到各个聚类中心的距离，并判断归属
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_5c7db3dac3ad4942824f9add824fc1a5" class="question-input"> -->

																						<span class="question-li-text">D: 
																								以上都不对
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						C
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							C
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">18.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">fcbab58c116a42c48162f6227e8329af</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>k-means算法中，有两个循环，其中第二个做了什么操作</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_fcbab58c116a42c48162f6227e8329af" class="question-input"> -->
																						<span class="question-li-text">A: 
																								聚类中心的移动
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_fcbab58c116a42c48162f6227e8329af" class="question-input"> -->
																						<span class="question-li-text">B: 
																								计算聚类中心和聚类中心间的距离
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_fcbab58c116a42c48162f6227e8329af" class="question-input"> -->

																						<span class="question-li-text">C: 
																								计算样本与样本间的距离
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_fcbab58c116a42c48162f6227e8329af" class="question-input"> -->

																						<span class="question-li-text">D: 
																								计算所有样本到各个聚类中心的距离，并判断归属
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						A
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							A
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">19.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">baaee6938d9542008ce101f3efd1067b</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>已知当训练集特征非常多，而实例非常少的时候，可以采用</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_baaee6938d9542008ce101f3efd1067b" class="question-input"> -->
																						<span class="question-li-text">A: 
																								sigmoid核的支持向量机
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_baaee6938d9542008ce101f3efd1067b" class="question-input"> -->
																						<span class="question-li-text">B: 
																								不带核的支持向量机
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_baaee6938d9542008ce101f3efd1067b" class="question-input"> -->

																						<span class="question-li-text">C: 
																								高斯核的支持向量机
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_baaee6938d9542008ce101f3efd1067b" class="question-input"> -->

																						<span class="question-li-text">D: 
																								多项式核的支持向量机
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						B
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							B
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																	<!-- 单选 -->
																	<li class="question qt-singlechoice" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">20.</span><span class="question-type" style="display: none;">singlechoice</span><span>[单选题]</span><span class="question-point-content"><span>(</span><span class="question-point">3</span><span>分)</span></span><span class="question-id" style="display: none;">7c71b80ab14141c094a87bfbd82d172a</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>在机器学习中，假设有两个向量u=[[3],[4]]，v未知，并且已知向量u和向量v的内积为45，则v可能是以下哪个向量</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_7c71b80ab14141c094a87bfbd82d172a" class="question-input"> -->
																						<span class="question-li-text">A: 
																								[[3],[9]]
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_7c71b80ab14141c094a87bfbd82d172a" class="question-input"> -->
																						<span class="question-li-text">B: 
																								[[1],[3]]
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_7c71b80ab14141c094a87bfbd82d172a" class="question-input"> -->

																						<span class="question-li-text">C: 
																								[[3],[7]]
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_7c71b80ab14141c094a87bfbd82d172a" class="question-input"> -->

																						<span class="question-li-text">D: 
																								[[1],[5]]
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span> <span class="answer_value">
																					
																						A
																					 
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span> 
																							
																						 
																					</span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							A
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
																
																
															
														
															
																
																
																	<!-- 多选 -->
																	<li class="question qt-multiplechoice" style="display: list-item;"><div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">21.</span> <span class="question-type" style="display: none;">multiplechoice</span>
																			<span>[多选题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span>
																			<span class="question-id" style="display: none;">4f3e51df52044e849e352e1bb6215588</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>神经网络的反向传播算法中k层的误差d与哪些项有关</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_4f3e51df52044e849e352e1bb6215588" class="question-input"> -->
																						<span class="question-li-text">A: 
																								k+1层误差d
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_4f3e51df52044e849e352e1bb6215588" class="question-input"> -->
																						<span class="question-li-text">B: 
																								k层θ值
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_4f3e51df52044e849e352e1bb6215588" class="question-input"> -->

																						<span class="question-li-text">C: 
																								k层a值
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_4f3e51df52044e849e352e1bb6215588" class="question-input"> -->

																						<span class="question-li-text">D: 
																								k层z值
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">AB</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																						
																							<span style="color:red">
																								ABD
																							</span>
																						
																					
																				<br />
																			</div>
																		</div></li>
																
																
																
																
																
															
														
															
																
																
																	<!-- 多选 -->
																	<li class="question qt-multiplechoice" style="display: list-item;"><div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">22.</span> <span class="question-type" style="display: none;">multiplechoice</span>
																			<span>[多选题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span>
																			<span class="question-id" style="display: none;">5a573362b9a84328add75890e4673f72</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>关于多项式次数d与代价函数误差关系,下列说法中描述错误的是（）（其中d代表多项式的次数）</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_5a573362b9a84328add75890e4673f72" class="question-input"> -->
																						<span class="question-li-text">A: 
																								对于训练集：当 d 较小时，模型拟合程度更低，误差较大；随着 d 的增长，拟合程度提高，误差减小
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_5a573362b9a84328add75890e4673f72" class="question-input"> -->
																						<span class="question-li-text">B: 
																								对于训练集：当 d 较小时，模型拟合程度更高，误差较大；随着 d 的增长，拟合程度提高，误差减小
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_5a573362b9a84328add75890e4673f72" class="question-input"> -->

																						<span class="question-li-text">C: 
																								对于训练集：当 d 较小时，模型拟合程度更低，误差较大；随着 d 的增长，拟合程度提高，误差增大
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_5a573362b9a84328add75890e4673f72" class="question-input"> -->

																						<span class="question-li-text">D: 
																								对于训练集：当 d 较小时，模型拟合程度更高，误差较大；随着 d 的增长，拟合程度降低，误差增大
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">BCD</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							BCD
																						
																						
																					
																				<br />
																			</div>
																		</div></li>
																
																
																
																
																
															
														
															
																
																
																	<!-- 多选 -->
																	<li class="question qt-multiplechoice" style="display: list-item;"><div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">23.</span> <span class="question-type" style="display: none;">multiplechoice</span>
																			<span>[多选题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span>
																			<span class="question-id" style="display: none;">6d6651abff094bc99dd7b47b87c655ab</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>以下哪些是核函数</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_6d6651abff094bc99dd7b47b87c655ab" class="question-input"> -->
																						<span class="question-li-text">A: 
																								线性核
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_6d6651abff094bc99dd7b47b87c655ab" class="question-input"> -->
																						<span class="question-li-text">B: 
																								多项式核
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_6d6651abff094bc99dd7b47b87c655ab" class="question-input"> -->

																						<span class="question-li-text">C: 
																								高斯核
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_6d6651abff094bc99dd7b47b87c655ab" class="question-input"> -->

																						<span class="question-li-text">D: 
																								sigmoid核
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">ABCD</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							ABCD
																						
																						
																					
																				<br />
																			</div>
																		</div></li>
																
																
																
																
																
															
														
															
																
																
																	<!-- 多选 -->
																	<li class="question qt-multiplechoice" style="display: list-item;"><div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">24.</span> <span class="question-type" style="display: none;">multiplechoice</span>
																			<span>[多选题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span>
																			<span class="question-id" style="display: none;">420a6765ace74a81a8a05eddcd2aff0c</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>以下哪些场景适合使用SVM算法</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_420a6765ace74a81a8a05eddcd2aff0c" class="question-input"> -->
																						<span class="question-li-text">A: 
																								根据已有标签的图片数据，进行未知商品图片分类
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_420a6765ace74a81a8a05eddcd2aff0c" class="question-input"> -->
																						<span class="question-li-text">B: 
																								根据已知物种的DNA,对待测微生物种类进行判别
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_420a6765ace74a81a8a05eddcd2aff0c" class="question-input"> -->

																						<span class="question-li-text">C: 
																								基于用户的人口属性标签（包括性别、年龄、学历）建模，来对新增用户的人口属性进行判定
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_420a6765ace74a81a8a05eddcd2aff0c" class="question-input"> -->

																						<span class="question-li-text">D: 
																								通过大量移动设备用户的位置信息，为某连锁餐饮机构提供新店选址
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">ABC</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							ABC
																						
																						
																					
																				<br />
																			</div>
																		</div></li>
																
																
																
																
																
															
														
															
																
																
																	<!-- 多选 -->
																	<li class="question qt-multiplechoice" style="display: list-item;"><div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">25.</span> <span class="question-type" style="display: none;">multiplechoice</span>
																			<span>[多选题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span>
																			<span class="question-id" style="display: none;">ff04321ef63342de8d1e05a5655b42a2</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>若使用SVM过程中出现欠拟合的现象，则下面哪些可能是导致该结果的原因</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_ff04321ef63342de8d1e05a5655b42a2" class="question-input"> -->
																						<span class="question-li-text">A: 
																								其他参数保持不变，C值较小
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_ff04321ef63342de8d1e05a5655b42a2" class="question-input"> -->
																						<span class="question-li-text">B: 
																								其他参数保持不变，λ值较大
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_ff04321ef63342de8d1e05a5655b42a2" class="question-input"> -->

																						<span class="question-li-text">C: 
																								其他参数保持不变，σ较大
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_ff04321ef63342de8d1e05a5655b42a2" class="question-input"> -->

																						<span class="question-li-text">D: 
																								其他参数保持不变，σ较小
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">ABC</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							ABC
																						
																						
																					
																				<br />
																			</div>
																		</div></li>
																
																
																
																
																
															
														
															
																
																
																	<!-- 多选 -->
																	<li class="question qt-multiplechoice" style="display: list-item;"><div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">26.</span> <span class="question-type" style="display: none;">multiplechoice</span>
																			<span>[多选题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span>
																			<span class="question-id" style="display: none;">f824ea4fec7c4e1e951619e2f0ebe12e</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>支持向量机采用高斯核函数时，若σ较小时，容易导致</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_f824ea4fec7c4e1e951619e2f0ebe12e" class="question-input"> -->
																						<span class="question-li-text">A: 
																								A.欠拟合
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_f824ea4fec7c4e1e951619e2f0ebe12e" class="question-input"> -->
																						<span class="question-li-text">B: 
																								B.低偏差，高方差
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_f824ea4fec7c4e1e951619e2f0ebe12e" class="question-input"> -->

																						<span class="question-li-text">C: 
																								C.高偏差，低方差
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_f824ea4fec7c4e1e951619e2f0ebe12e" class="question-input"> -->

																						<span class="question-li-text">D: 
																								D.过拟合
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">BD</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							BD
																						
																						
																					
																				<br />
																			</div>
																		</div></li>
																
																
																
																
																
															
														
															
																
																
																	<!-- 多选 -->
																	<li class="question qt-multiplechoice" style="display: list-item;"><div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">27.</span> <span class="question-type" style="display: none;">multiplechoice</span>
																			<span>[多选题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span>
																			<span class="question-id" style="display: none;">ee2b2522ad5b44cfbd4916587741ecf4</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>下列有关SVM支持向量机的说法中，错误的是</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_ee2b2522ad5b44cfbd4916587741ecf4" class="question-input"> -->
																						<span class="question-li-text">A: 
																								如果使用一对多的方式训练多分类支持向量机，则不可能用到核函数
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_ee2b2522ad5b44cfbd4916587741ecf4" class="question-input"> -->
																						<span class="question-li-text">B: 
																								高斯核的最大值为1
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_ee2b2522ad5b44cfbd4916587741ecf4" class="question-input"> -->

																						<span class="question-li-text">C: 
																								如果数据是线性可分的，SVM使用线性核，无论C如何选择，都将会返回一个相同的参数θ（即θ的结果不依赖于C的值）
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_ee2b2522ad5b44cfbd4916587741ecf4" class="question-input"> -->

																						<span class="question-li-text">D: 
																								假设输入参数是二维（x(i)∈R2），则支持向量机（线性核）的决策边界是一条直线
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">AC</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							AC
																						
																						
																					
																				<br />
																			</div>
																		</div></li>
																
																
																
																
																
															
														
															
																
																
																	<!-- 多选 -->
																	<li class="question qt-multiplechoice" style="display: list-item;"><div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">28.</span> <span class="question-type" style="display: none;">multiplechoice</span>
																			<span>[多选题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span>
																			<span class="question-id" style="display: none;">0f804e82739f490bba749bdad6f80de1</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>n为特征数，m为训练样本数,当m&lt;n时，即训练集数据量不够支持训练一个复杂的非线性模型时，应选用怎样的模型</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_0f804e82739f490bba749bdad6f80de1" class="question-input"> -->
																						<span class="question-li-text">A: 
																								使用多项式核的svm
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_0f804e82739f490bba749bdad6f80de1" class="question-input"> -->
																						<span class="question-li-text">B: 
																								使用高斯核的SVM
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_0f804e82739f490bba749bdad6f80de1" class="question-input"> -->

																						<span class="question-li-text">C: 
																								逻辑回归模型
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_0f804e82739f490bba749bdad6f80de1" class="question-input"> -->

																						<span class="question-li-text">D: 
																								不带核函数的支持向量机
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">CD</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							CD
																						
																						
																					
																				<br />
																			</div>
																		</div></li>
																
																
																
																
																
															
														
															
																
																
																	<!-- 多选 -->
																	<li class="question qt-multiplechoice" style="display: list-item;"><div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">29.</span> <span class="question-type" style="display: none;">multiplechoice</span>
																			<span>[多选题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span>
																			<span class="question-id" style="display: none;">8fb68f073448464a9890fa6cc4675bab</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>以下对k-means聚类算法解释不正确的是</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_8fb68f073448464a9890fa6cc4675bab" class="question-input"> -->
																						<span class="question-li-text">A: 
																								能自动识别类的个数,随即挑选初始点为中心点计算
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_8fb68f073448464a9890fa6cc4675bab" class="question-input"> -->
																						<span class="question-li-text">B: 
																								能自动识别类的个数,不是随即挑选初始点为中心点计算
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_8fb68f073448464a9890fa6cc4675bab" class="question-input"> -->

																						<span class="question-li-text">C: 
																								不能自动识别类的个数,随即挑选初始点为中心点计算
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_8fb68f073448464a9890fa6cc4675bab" class="question-input"> -->

																						<span class="question-li-text">D: 
																								不能自动识别类的个数,不是随即挑选初始点为中心点计算
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">ABD</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							ABD
																						
																						
																					
																				<br />
																			</div>
																		</div></li>
																
																
																
																
																
															
														
															
																
																
																	<!-- 多选 -->
																	<li class="question qt-multiplechoice" style="display: list-item;"><div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">30.</span> <span class="question-type" style="display: none;">multiplechoice</span>
																			<span>[多选题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span>
																			<span class="question-id" style="display: none;">5bbd1bd8a68c49d3a22191bd982757a8</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>关于kmeans算法，哪些说法是正确的</pre>
																				
																				
																			<p></p>
																			<ul class="question-opt-list">
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="A" name="question-radio1_5bbd1bd8a68c49d3a22191bd982757a8" class="question-input"> -->
																						<span class="question-li-text">A: 
																								第一个循环是用于减小c(i)引起的代价
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="B" name="question-radio1_5bbd1bd8a68c49d3a22191bd982757a8" class="question-input"> -->
																						<span class="question-li-text">B: 
																								迭代的过程一定会是每一次迭代都在减小代价函数，不然便是出现了错误
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="C" name="question-radio1_5bbd1bd8a68c49d3a22191bd982757a8" class="question-input"> -->

																						<span class="question-li-text">C: 
																								第二个循环则是用于减小μk引起的代价
																							 
																					</span>
																					</li>
																				
																				
																					<li class="question-list-item">
																						<!-- 																	<input type="radio" --> <!-- 																	value="D" name="question-radio1_5bbd1bd8a68c49d3a22191bd982757a8" class="question-input"> -->

																						<span class="question-li-text">D: 
																								以上都正确
																							 
																					</span>
																					</li>
																				
																				
																				

																			</ul>
																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">ABCD</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							ABCD
																						
																						
																					
																				<br />
																			</div>
																		</div></li>
																
																
																
																
																
															
														
															
																
																
																
																	<!-- 判断 -->
																	<li class="question qt-trueorfalse" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">31.</span><span class="question-type" style="display: none;">trueorfalse</span>
																			<span>[判断题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span><span class="question-id" style="display: none;">5b41d1efaf52467cb073f6e2d174f149</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>聚类时可能产生过拟合问题</pre>
																				
																				
																			<p></p>

																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">
																					
																						
																						错
																					
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							
																								
																								错
																							
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
															
														
															
																
																
																
																	<!-- 判断 -->
																	<li class="question qt-trueorfalse" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">32.</span><span class="question-type" style="display: none;">trueorfalse</span>
																			<span>[判断题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span><span class="question-id" style="display: none;">bb0516e3e0124f7abc9588e40ca4d0a9</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>神经网络模型可以看作是许多逻辑回归模型的叠加而成</pre>
																				
																				
																			<p></p>

																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">
																					
																						对
																						
																					
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							
																								对
																								
																							
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
															
														
															
																
																
																
																	<!-- 判断 -->
																	<li class="question qt-trueorfalse" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">33.</span><span class="question-type" style="display: none;">trueorfalse</span>
																			<span>[判断题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span><span class="question-id" style="display: none;">f9291a99095b43c3b47509f6f7eceea4</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>高斯核函数的值域是(0,1），既不包括0，也不包括1</pre>
																				
																				
																			<p></p>

																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">
																					
																						
																						错
																					
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							
																								
																								错
																							
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
															
														
															
																
																
																
																	<!-- 判断 -->
																	<li class="question qt-trueorfalse" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">34.</span><span class="question-type" style="display: none;">trueorfalse</span>
																			<span>[判断题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span><span class="question-id" style="display: none;">4da9d123ca0942718f436d30ac0a513a</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>支持向量机又称为最大间距分类器</pre>
																				
																				
																			<p></p>

																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">
																					
																						对
																						
																					
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							
																								对
																								
																							
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
															
														
															
																
																
																
																	<!-- 判断 -->
																	<li class="question qt-trueorfalse" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">35.</span><span class="question-type" style="display: none;">trueorfalse</span>
																			<span>[判断题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span><span class="question-id" style="display: none;">cdf3155f0c9944ebbe74f3b5c158a000</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>支持向量机既能做分类，也能做回归</pre>
																				
																				
																			<p></p>

																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">
																					
																						对
																						
																					
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							
																								对
																								
																							
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
															
														
															
																
																
																
																	<!-- 判断 -->
																	<li class="question qt-trueorfalse" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">36.</span><span class="question-type" style="display: none;">trueorfalse</span>
																			<span>[判断题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span><span class="question-id" style="display: none;">002bafdf439a4f199631c0ebf6a5cf62</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>支持向量机只能用于分类问题</pre>
																				
																				
																			<p></p>

																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">
																					
																						
																						错
																					
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							
																								
																								错
																							
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
															
														
															
																
																
																
																	<!-- 判断 -->
																	<li class="question qt-trueorfalse" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">37.</span><span class="question-type" style="display: none;">trueorfalse</span>
																			<span>[判断题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span><span class="question-id" style="display: none;">c5b2a2ad4c68418e8c2ca7659c0ff639</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>在机器学习中，分类间隔的最大化，使得支持向量机算法具有较好的鲁棒性</pre>
																				
																				
																			<p></p>

																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">
																					
																						对
																						
																					
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							
																								对
																								
																							
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
															
														
															
																
																
																
																	<!-- 判断 -->
																	<li class="question qt-trueorfalse" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">38.</span><span class="question-type" style="display: none;">trueorfalse</span>
																			<span>[判断题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span><span class="question-id" style="display: none;">adc14757bc39477d9a6c8565948d2299</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>半监督学习是监督学习与无监督学习相结合的一种学习方法。</pre>
																				
																				
																			<p></p>

																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">
																					
																						对
																						
																					
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							
																								对
																								
																							
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
															
														
															
																
																
																
																	<!-- 判断 -->
																	<li class="question qt-trueorfalse" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">39.</span><span class="question-type" style="display: none;">trueorfalse</span>
																			<span>[判断题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span><span class="question-id" style="display: none;">6bc78e5037f4419984158765973660c1</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>Kmeans的结果对于聚类中心初始值的设置很敏感，初始值选择不好，会影响结果</pre>
																				
																				
																			<p></p>

																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">
																					
																						对
																						
																					
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							
																								对
																								
																							
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
															
														
															
																
																
																
																	<!-- 判断 -->
																	<li class="question qt-trueorfalse" style="display: list-item;">
																		<div class="question-title">
																			<div class="question-title-icon"></div>
																			<span class="question-no">40.</span><span class="question-type" style="display: none;">trueorfalse</span>
																			<span>[判断题]</span> <span class="question-point-content"><span>(</span><span class="question-point">2</span><span>分)</span></span><span class="question-id" style="display: none;">7e286b23965449ca85fd4a5d40fef291</span>
																		</div>
																		<div class="question-body">
																			<p class="question-body-text">
																				
																					</p><pre>肘部法则（elbow method）可用于估计簇的数量</pre>
																				
																				
																			<p></p>

																		</div>
																		<div class="answer-desc">
																			<div class="answer-desc-summary">
																				<span>正确答案：</span><span class="answer_value">
																					
																						对
																						
																					
																				</span><br />
																			</div>
																			<div class="answer-desc-detail">
																				<div class="answer-desc-content">
																					<span>试题解析：</span> <span></span>
																				</div>
																			</div>
																			<div class="answer-desc-detail">
																				<span>我的答案：</span>
																					
																						
																							
																								对
																								
																							
																						
																						
																					
																				<br />
																			</div>
																		</div>
																	</li>
																
																
																
																
															
														
													</ul>
												</div>
											</div>
										</form>
									</td>
								</tr>
							</tbody>
						</table>
					</div>
				</div>
			</div>
		</div>

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